Development of magnetism in strongly correlated cerium systems: Non-Kondo mechanism for moment collapse
Year: 2000
Type: article
Abstract: We present an ab initio--based method which gives clear insight into the interplay between the band-f hybridization, the band-f Coulomb exchange, and the crystal-field interactions, as the degree of $4f$ localization is varied across a series of strongly correlated cerium systems. The predictions for the ordered magnetic moments, magnetic structure, and ordering temperatures are in excellent agreement with experiment, including the occurrence of a moment collapse of non-Kondo origin. In contrast, spin- and orbitally polarized ab initio density functional calculations and local density approximation $+U$ calculations fail to predict, even qualitatively, the trend of the unusual magnetic properties.
Authors: Eric M. Collins, Nicholas Kioussis, Say Peng Lim, Bernard R. Cooper
Institution: California State University, Northridge
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2255060943